Valve for fuel saving devices



y 2, 1944- R. A. GALlP ETAL I 2,347,946 VALVE FOR FUEL SAVING DEVICE Filed Aug. 25, 1941 Patented May 2, 1944 VALVE FOR SAVING DEVICES Ramon Antonio Galip and Francisco Salvatierra, Buenos Aires, Argentina Application August 25, 1941, Serial No. 408,272

Figure 1 is a lateral view in elevation of the device parts of which are shown in section;

Figure 2 is a horizontal view and a transversal section on line AA of Figure 1;

Figure 3 is a view in elevation, partly in section, of one of the parts of which the device consists; and r Figure 4 is a view in elevation of the valve which forms part of the device.

In accordance with the drawing, the preferred form of the device according to the present invention consists of the following parts.

A chamber 1 is provided with a tubular concentric extension 2, and between both an annular filter chamber 3 (Figures 1 and 2) is formed. The chamber l carries a cover 4 secured thereto by means of internal and external screw threads. openings or apertures 5 which permit the air 2 Claims.

The present invention refers to a device for saving fuel in the operation of internal combustion engines of any known type or class, regardless of whether or not the engine is provided with a preheating chamber. At the same time, the 5" construction of the apparatus according to the present invention is such that the output and yield of the engine are materially increased, and higher speeds may be obtained while overheating is substantially avoided.

The primary object of the invention is the provision of an apparatus as specified which permits the automatic entry of air from the atmosphere and which controls the flow of the air through filtering means whereby the air is caused to mix with the mixture of gas and air from the carburettor. Due to this the mixture will have a greater content of oxygen thus neutralizing the effects of faulty carburation, and thereby a complete gasification of the mixture is obtained while the accumulation of carbonaceous residues is avoided. This again renders the operation of the engine easier, and no impurities are deposited in the spark plugs. It will therefore be understood that the invention not only means a material saving of fuel, but it provides at the same time a means tending to maintain the engine in proper condition for regular and steady working.

The device consists substantially of an assembly comprising a filtering chamber for atmospheric air closed by a removable cover which is provided with apertures or openings for the entry of air, said chamber comprising filtering means constituted by a disc which is provided with a plurality of axial perforations filled with appropriate filtering substances. Said disc is at its base in contact with a liquid filling a part of the filter chamber. The disc is further provided with an axial central perforation which forms a passageway for filtered air and which communicates with a second passage constituted by a tubular member fixed by means of screw threads to the bottom of the filtering chamber. Said passage extends below to form a cylindrical 45 member communicating with the admission of the engine and connected, on the other hand, to the filter chamber through the cylindrical member. There is also a valve controlling the passage of filtered air to the admission, this valve being controlled by a spring the tension of which. can be adjusted by means of the screw threads connecting the tubular member to the cylindrical member.

Further features of the present invention will become evident from the following detailed description of the invention in which reference will be made to the accompanying drawing which shows a preferred embodiment of the nvention and in which These openings or apertures are adjacent to the lower surface of an annular internal partition 6. The latter is disposed near the upper end of the cover 4. The partition 6 loosely supports the upper end of the filtering disc 1 which is provided with a plurality of axial perforations or apertures 8 filled with a filtering material such as metal shavings or chips or any other suitable material.

The filtering disc 1 is maintained in its position within the annular chamber 3 due to the fact that its annular flange l0 v(Figure 3) is freely resting upon the shoulder formed by the upper end of the tubular concentric extension 2,

diametrically widened.

A tubular member I2 is fixed to the tubular extension 2 of chamber I, and this member 12 forms the further passage way for filtered air 0 to the admission of the engine. This passage is controlled by a valve I3 the object of which is air allowed to pass therethrough. The valve 13 comprises a stem section I4 (Figure l) the lateral surface of which is provided with oblique incisions or slots l5 which permit the air to pass when the valve is not in contact with the bottom of the tubular member 12. From the lower end of the stem Hi there is projected a pin E6 of triangular shape surrounded by a spring ll ment of the valve.

The pin iii of the stem 14 of the valve I3 is arranged, together with the spring I], within a tubular element l8 projecting from the bottom of the tubular member l2 and joined theremeans of screw threads, a cylindrical member The cover 4 has lateral inlet from the atmosphere to enter the chamber I.

whereby the passage way for filtered air H is the regulation, .in accordance with the requiree, ments of a given engine, of the volume of filtered constituting a control means for the lineal moveto by means of screw threads and/or nut iii. Said tubular element carries adjustable, by-

20 the lower end of which is formed like a nut 22 carrying, by means of screw threads, a tubular member 2| which constitutes a restricted passage way 23. The pin I6 is guided in said passage way 23 in its vertical movement, and the spring i1 rests with its lower end on the shoulder formed due to the difierence in the inner diameters of cylindrical member 20 and the narrower passage way 23. The latter is in free communication with the admission of the. engine.

The tension of the spring H is to be adjusted according to the requirements of the engine with which the device is desired to be used. This means to say that the spring must not easily give way to permit the valve I3 to assume its closing position before the due time. On the other hand, the tension of the spring must not excessively affect the valve and thereby prevent the same from assuming the position in which it does not permit the passage of air. In view of this the tension of. the spring is to be properly adjusted which can be done by controlling theposition of the greater cylindrical member 29 relative to the tubular element !8, and for this purpose the nut 24 (Figure 1) is also provided which maintains said parts in their relative position.

The valve l3 must not rise higher than to the position in which the lower end of the stem section 14 is at the level with the upper end of the tubular element I8, as shown in Figure 1. With this end in view there is provided a bolt 25 in engagement with the cover 4 by means of screw threads. The lower end of said bolt limits the upward movement of the valve 3. The position of the bolt 25 may be adjusted by means of the nut 26. The bolt will be provided with a' suitable head 21 allowing its easy adjustment.

As stated 'above, the present device can be applied to engines provided with a preheating chamber as well as to engines without such chamber., In the first event the device includes a plate or metal sheet 28 of suitable shape provided with two openings 29 which are in communication with the admission of the engine.

Said plate carries a tube 30 (Figure l) pro-- vided with a cube 31 in which. the. tubular member 2| is fixed by means of screw threads. The passage way-23- of member 2| converges with the passage way 32 of the tube 30.. Saidpassage way a 32 converges with two passages 34 provided within the plate 28 and which extend in angular divergent direction into eachof the openings 29 as indicated by the. dotted lines, in Figure 2..

If the engine has no preheating. chamber the device will be fixed as .to freely communicate with the admission tube. In that case a cranked element will be inserted one end of which will be connected with the tubular member 21 by means of screw threads.

Within the filter chamber 3 a determined amount of oil will be deposited the level of which will reach the base of the disc I as shown in Figure 1.. Said oil aids the filtering elements 9 of the disc 7 so that a complete filtration of the air will be achieved. The oil is introduced into the chamber when the several parts of the device are assembled and mounted to communicate with the admission tube of the engine.

The operation of the device will be clear from the foregoing description. It may be added that, if an engine has been equipped with the device according to the present invention, the latter is in communication with the admission. When the engine is started the valve l3 will automatically be lowered to hermetically close the air inlets. This will be brought about by the fact that the resulting draft temporarily overcomes the resistance of the spring l1. When thereafter the speed of the engine is increased the spring will gradually urge the valve in an upward direction so that air from the outside may enter the chamber 3 through apertures 5 of the cover 4, and the air will come into contact with the oil 35, the first phase of the filtering process thus being performed. The air will then pass through the channels 8 of the disc 1 where the filtering substances 9 will do the final filtering. The filtered air will thereafter continue its flow through the passage H of the disc, the opening. of the extension 2, tubular member [2 and the lower tubular element 18, and then it will reach, through passageway 23, the admission transversing either the passages 32 and 34' or, if no preheating chamber exists, direct through the admission tube.

After the device has been adjusted to correspond to the requirements of the engine to which it is applied no further control of the same will be necessary since it will automatically work.

Only periodical changes of the filtering oil and filtering material will be required, and the device should sometimes be cleaned.

It will be understood that modifications of the device may be introduced that fall within the scope of the invention.

What we claim is:

1. In an air filtering device particularly adapted for use in connection with internal combustion engines, an. air inlet chamber, an air outletfor adjustably interconnecting said tubular member and said cylindrical member, said conduit means including avalve for controlling the passage of air therethrough, said Valve comprising a spring the tension of which is adjusted in accordance with the position of said cylindrical chamber, conduit chamber and extending into close proximity to said valve.

2. In an air filtering device particularly adapted for use in connection Withinternal combustion engines, an air inlet chamber, an air outlet means interconnecting said chambers and comprising a tubular member secured to said inlet chamber and a cylindrical member secured to said outlet chamber, means for adjustably interconnecting said tubular member and said cylindrical member, said conduit means including a valve for controlling the passage of air therethrough, said valve comprising a spring the tension of which is adjusted in accordance with the position of said cylindrical and tubular members, and means for limiting the extent of movement of said valve and comprising a bolt adjustably mounted on said inlet chamber and extending into close proximity to said valve, said valve being slotted adjacent the head thereof to provide supplemental. passages for the passage of air when the valve is in unseated position.

RAMON ANTONIO GALIPO'. FRANCISCO SALVATIERRA. 

